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a bio question from the old thread

Discussion in 'DAT Discussions' started by finwon, Apr 14, 2007.

  1. finwon

    finwon 2+ Year Member

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    Apr 7, 2007

    Here is the question and the answer.

    Which process is NOT shared by eukaryotes and prokaryotes?

    A. DNA synthesis precedes spindle formation during division
    B. Each daughter cell receives half of the maternal DNA
    C. Glycolysis provides ATP for cell use
    D. Oxidative phosporylation may provide ATP for cell use


    Answer: A

    There is no spindle formation in prokaryotes (bacteria) because bacteria do not use the process of mitosis to reproduce. Prokaryotes reproduce by binary fission


    ----------
    I knew A was the answer, but I wonder how B isn't a wrong statement.
    When bacteria reproduce by binary fission, their daughter cells (newly reproduced individual bacteria) contain the exactly same DNA material as their parents.
    Am I misunderstanding the concept of binary fission?
     
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  3. sickeye29

    sickeye29 New Member 2+ Year Member

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    Jul 20, 2006
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    I think the reason B is true is DNA replication is semi conservative. correct me if im wrong though
     
  4. Ex_EE

    Ex_EE 2+ Year Member

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    Sep 23, 2006
    Houston
    That is true, but prokaryote dna is a single loop instead of double stranded. So, I believe B should be wrong as well.
     
  5. sickeye29

    sickeye29 New Member 2+ Year Member

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    Jul 20, 2006
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    i disagree or maybe im just misunderstanding you, but prokaryotic DNA is double stranded and circular. or i might be wrong but im 95% sure
     
  6. BodybldgDoc

    BodybldgDoc Guest

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    Jan 13, 2007
    In your closet
    DNA proceeds semi-conservatively in prokaryotes but there is no maternal and paternal DNA. Its just the DNA from the original parent which undergoes asexual reproduction and this is why statement B would be wrong.
     
  7. Lonely Sol

    Lonely Sol cowgoesmoo fan! 10+ Year Member

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    Dec 13, 2005
    Atlanta, GA
    yess!! There is no maternal or paternal stuff in prokaryotes1
     
  8. jdmsamurai

    jdmsamurai 2+ Year Member

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    Feb 11, 2007

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